﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
		if(!Page.IsPostBack)
		{
			rfvAccount.ControlToValidate = txtAccount.ID;
		}
    }
	protected void btnSubmit_Click(object sender, EventArgs e)
	{
		if(txtAccount.Text.Trim() == "")
		{
			Response.Write("账号不能为空");
		}
	}
}
